PuntoEngine is a PHP MVC framework that mixes the best practices of diferent Web frameworks. PuntoEngine mixes ideas from ASP.Net MVC, Java Servlets, and PHP. It lets you easily configure a Servlet to cast request GET, POST, Webservice XML. It can also be configured to draw a page with a master page.
Sirix is a versioned tree-based storage system. It provides Snapshot Isolation through MVCC and is best suited for flash-based storage. The tree encoding is suited for heavy update operations. It provides diffing algorithms either to import diffs between currently shredded (imported) XML documents to update a tree structure or to get the differences between versions of a tree structure. A GUI provides several visualizations for comparing imported tree structures.
Arcavias is an e-commerce framework for Web shops, consisting of an e-commerce library, an administration interface, and different frontends. It's a modular stack which offers flexibility and speed. Unlike other Web shops, it's not a monolithic application. Instead, you have a choice between several user frontends, and you can adapt them to your needs or write one of your own.